Igneous Rocks - made from molten rock that cools and hardens
Rhyolite - fine grained, extrusive, fast cooling rate, felsic Scorria - fine grained, extrusive, fast cooling rate, mafic, bubbles when acid is applied Granite - (bathroom pass) coarse, intrusive, slow cooling rate, felsic Andesite - fine grained, extrusive, fast cooling rate, mafic Diorite - coarse, intrusive, slow cooling rate, felsic Basalt - fine grained, extrusive, fast cooling rate, mafic Pumice - fine grained, extrusive, fast cooling rate, felsic, bubbles when acid is applied Gabbro - porphyritic, intrusive & extrusive, fast & slow cooling rate, mafic Obsidian - glassy black, extrusive, fast cooling rate, felsic
Sedimentary Rocks - made of pieces of other rocks cemented together
Conglomerate- clastic, pooe Coal-pure black,organic Limestone- geode, and chemical, bubbles when acid is applied Brecchia- Clastic, poorly sorted Shale- Fossils/strat, well sorted, clastic Chert-clastic, well sorted, stratification Sandstone- clastic, well sorted, stratification Coquina- organic bubbles when acid is applied
Siltstone- clastic, well sorted, strat
Metamorphic Rocks - created by changes brought about by heat, pressure, chemical reactions
Quartzite - non-foliated, formed by heat, previously quartz Marble- non-foliated, formed by heat, previously limestone Schist - foliated, formed by pressure, previously chlorite Gneiss - foliated, formed by heat & pressure, previously muscovite Slate - foliated, formed by pressure, previously shale
Rhyolite - fine grained, extrusive, fast cooling rate, felsic
Scorria - fine grained, extrusive, fast cooling rate, mafic, bubbles when acid is applied
Granite - (bathroom pass) coarse, intrusive, slow cooling rate, felsic
Andesite - fine grained, extrusive, fast cooling rate, mafic
Diorite - coarse, intrusive, slow cooling rate, felsic
Basalt - fine grained, extrusive, fast cooling rate, mafic
Pumice - fine grained, extrusive, fast cooling rate, felsic, bubbles when acid is applied
Gabbro - porphyritic, intrusive & extrusive, fast & slow cooling rate, mafic
Obsidian - glassy black, extrusive, fast cooling rate, felsic
Sedimentary Rocks - made of pieces of other rocks cemented together
Conglomerate- clastic, pooe
Coal- pure black,organic
Limestone- geode, and chemical, bubbles when acid is applied
Brecchia- Clastic, poorly sorted
Shale- Fossils/strat, well sorted, clastic
Chert-clastic, well sorted, stratification
Sandstone- clastic, well sorted, stratification
Coquina- organic bubbles when acid is applied
Siltstone- clastic, well sorted, strat
Metamorphic Rocks - created by changes brought about by heat, pressure, chemical reactions
Quartzite - non-foliated, formed by heat, previously quartz
Marble - non-foliated, formed by heat, previously limestone
Schist - foliated, formed by pressure, previously chlorite
Gneiss - foliated, formed by heat & pressure, previously muscovite
Slate - foliated, formed by pressure, previously shale